Charge-forming device for internal-combustion engines



G. A, RICHARDS,

CHARGE FORMING DVICE 0R INTERNAL COMBUSTION ENGINES. APPLICATION fILED APR. 11. 1919.

1,345,507. a nt d July 6, 1920.

9% INVENTOR ATTORNEY UNITED STATES PATENT ()FFlCE.

GEORGE A. RICHARDS, OF PUEBLO, COLUMN il CHARGE-FORMING Application filed April 11.

To all whom it may concern Be it known that I, (iuonun A. Rlciianns, a citizen of the United States, and a resi dent of Pueblo, Pueblo county, Colorado, have invented certain new and useful Im' provements in (barge-Forming Devices for lnternal-(domliustiou Engines, of which the following is a. specification.

This invention is an improvement in apparatus for the heating of the fuel used in an internal combustion or explosion englue and same is ilprvlh'tlliln to any such. engine in wh ch the fuel or explnl ite chargre is in the iorm of a liquid. fluid or rap-Jr.

The primary object at this invention is to heat the charge or mplo ire mixture. at ter sanic lezn'es the carbureler or mixing chamber and before. its entrance into the cylinders of the engine. through the intake manifold. Thus vaporization of the mice ture is increased by raising the temperature of the fuel at a point where it cannot come into contact with the cold metal of the intake manifoldthat is, at a point immediately adjacent to the engine block, same being between the intake manifold and the engine block itself, at the point where these two pa rts are usually oined. Th s is accomplished by conducting a part of the heat from the exhaust manifold by means of wires of a metal of high conductivity of heat, into the passages through which the vaporized fuel must pass on its way from the carbureter or mixing chamber to the explosion or combustion chamber.

A t'urther object is to provide a means of heating the fuel mixture uniformly by causing; all parts of same to come into contact with the surfaces of the Wires which conduct heat lllllll the exhaust manifold.

A further object of this invention is to provide a means of ap 'ilication of heat to the vaporized fuel mixture at such a point that said mixture will have no chance to cool before entering the explosion or combustion chamber.

Other objects of this invention Will be apparent from the description of same set out hereinafter and from an inspection of the drawings and appended claims accompanying this application and the specific description thereof, in which drawings like characters of reference indicate like parts throughout the several views.

In the drawings:

Figure 1 represents the side elevation of Specification of Letters Patent.

DEVICE FOR INTERNAL-COMBUS'LTIY:N ENGINES.

Patented July (3. [920.

1919. Serial No. 289.450.

an ordinary l lrlll-(f \'lllltlQl' gas engine, showing one intake port in section.

Fig. 2 is a top view showing; the method of attaching my invention.

Fig. 3 is an enlarged view on sectiim fil -1 oi Fig. .2 of the superhcaiing device showin the method of attachment and showing also cross section views of intake port and exhaust manifold.

Fig. 4 is a rertical section of this appliance showing method of insertion thereof between intake manifold and intake port ol' cylind r m engine block.

licl'criine mm to the particular charaetcrs olretort-ow lll said drawings:

ll 1. l" and 1' show the respective cylinders in a i'ouncvlimIcr gas engine: is the exhaust manifold and 25 is the intake manifold.

4 shows the device which is the subject of this application. provided with the wires 5, the latter of a metal which is a higher conductor of heat than the surrounding metal. Suitable holes 6 are provided in the two annular rings 4 and 4, which two annular rings are closely fitted together by the screws 7, 7. and T and inserted between the intake manitold and the intake port of the engine block. The outer face of each annular ring is provided with the projection 9 of the proper size to fit snugly into the intake manifold 3 and the intake port of the engine block 10. being clamped in this position by bolts 12 and 12'.

The wires 5 beinp plural in number are firmly clamped in place between the two annula r rings 4 and t extending completely across the opening: thereof. socketed in one side and extending beyond the other side beyond which said wires are Wound about the exhaust manifold. Thus a screen is formed across the intake port of the engine and heat is conveyed from the exhaust manifold to this sireen through which the entire charge of hydro-carbon mixture used to operate the engine must pass on its course from the carburetor or mixing chamber into the explosion chamber.

From this explanation it will be seen that this device provides a simple method of conveying the heat from the exhaust manil id to the interior of each. intake port at a p" int therein which is the closest racticahle point to the place of consumption of the fueluised in the engine. Thus the mixture is kept at a. high temperature and more complete combustion ensues. No loss of heat from the mixture ()filflll'S for it does not mine into -onta ri' with void metal after leavin; my derive but goes at once into the en ginu hlork itself.

From this explanation it in apparent that this device is i-apable oi Considerable modification both as to size and form as engines of different power and Fuel will require different amounts of heat, thus making newssai'y the use of different sized wires. All such modifications I (onsider within the spiri.t and scope of my invention.

1, therefore, claim as new: 1. k device of the character dosa-rihed. including two annular rings so joined toether as to hold rigidly irus of high ronuctivity of heat, said wires extending:

across (awnings: in said annular rings and forming: a screen, said rings having extensions on the two outer faces thereof of proper size to fit into and between the intake manifold and intake port of an explosion or oon'ihustion engine, and method of ren'iovahly secur ng same in this position. between. intake manifold and intake port of engine.

2. A device of the rharacter described uorn nising means for conveying heat from the exhaust manifold of a combustion engine to the interior of the intake manifold then-of, aid moans consisting of Wires of a high heat conductivity mnln'in-iin g the exterior of the exhaust manifold.

GEURGE A. RIUHA ltDS. 

